Today, most mobile sites and applications offer a good user experience. There are still the occasional glitches and sacrifices of usability in favor of aesthetics, but we can confidently say that the field has progressed in the past two years since the last report. Most of the egregious errors are not there anymore. When we tried to update the examples for many of our mobile guidelines, we discovered that the companies had fixed their problems and some of the issues that we discussed were no longer common. Yet we also encountered revivals of problems we thought almost extinct two years ago. In the business of usability, mistakes (like trends) tend to be cyclic: one generation identifies them and creates design patterns that avoid them, but later generations, no longer having witnessed the UX problem, make the same error again in their quest for refreshed designs. It’s always two steps forward and one step backward.